import { login, logout } from '@/api/user'
import { getToken, removeLoginType, removeToken, getLoginType, setLoginType, setToken, getUserName } from '@/utils/auth'
import router, { resetRouter } from '@/router'

const state = {
  token: getToken(),
  userName: getUserName(),
  avatar: '',
  introduction: '',
  roles: [],
  loginType: getLoginType() // 登录身份 1->律师，2->客户
}

const mutations = {
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  SET_INTRODUCTION: (state, introduction) => {
    state.introduction = introduction
  },
  SET_USERNAME: (state, userName) => {
    state.userName = userName
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  SET_ROLES: (state, roles) => {
    state.roles = roles
  },
  SET_LoginType: (state, loginType) => {
    state.loginType = loginType
  }
}

const actions = {
  SetLoginType({ commit }, { loginType }) {
    commit('SET_LoginType', loginType)
  },
  // user login
  login({ commit }, userInfo) {
    const { username, password, isLaw } = userInfo
    return new Promise((resolve, reject) => {
      login({ user_name: username.trim(), user_pwd: password, is_law: isLaw }).then(response => {
        const { data } = response
        commit('SET_TOKEN', data)
        // 解码(data.data代表的是解析的数据)
        let jwt = require('jsonwebtoken')
        let str = jwt.decode(data)
        commit('SET_USERNAME', str.user_name)
        setToken(data)
        setLoginType(isLaw ? 1 : 2)
        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // get user info
  getInfo({ commit, state }) {
    return new Promise((resolve, reject) => {
      const { data } = {
        'admin-token': {
          roles: ['admin'],
          introduction: 'I am a super administrator',
          avatar: 'https://wpimg.wallstcn.com/f778738c-e4f8-4870-b634-56703b4acafe.gif',
          name: 'Super Admin'
        }
      }
      const roles = ['admin']
      commit('SET_ROLES', roles)
      commit('SET_AVATAR', 'avatar')
      commit('SET_INTRODUCTION', 'introduction')
      resolve(data)
      // getInfo(state.token).then(response => {
      //   const { data } = response
      //
      //   if (!data) {
      //     reject('Verification failed, please Login again.')
      //   }
      //
      //   const { roles, name, avatar, introduction } = data
      //
      //   // roles must be a non-empty array
      //   if (!roles || roles.length <= 0) {
      //     reject('getInfo: roles must be a non-null array!')
      //   }
      //
      //   commit('SET_ROLES', roles)
      //   commit('SET_NAME', name)
      //   commit('SET_AVATAR', avatar)
      //   commit('SET_INTRODUCTION', introduction)
      //   resolve(data)
      // }).catch(error => {
      //   reject(error)
      // })
    })
  },

  // user logout
  logout({ commit, state, dispatch }) {
    return new Promise((resolve, reject) => {
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      removeToken()
      removeLoginType()
      resetRouter()
      dispatch('tagsView/delAllViews', null, { root: true })
      resolve()
      // logout(state.token).then(() => {
      //   commit('SET_TOKEN', '')
      //   commit('SET_ROLES', [])
      //   removeToken()
      //   resetRouter()
      //   // reset visited views and cached views
      //   // to fixed https://github.com/PanJiaChen/vue-element-admin/issues/2485
      //   dispatch('tagsView/delAllViews', null, { root: true })
      //   resolve()
      // }).catch(error => {
      //   reject(error)
      // })
    })
  },

  // remove token
  resetToken({ commit }) {
    return new Promise(resolve => {
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      removeToken()
      resolve()
    })
  },

  // dynamically modify permissions
  changeRoles({ commit, dispatch }, role) {
    return new Promise(async resolve => {
      const token = role + '-token'

      commit('SET_TOKEN', token)
      setToken(token)

      const { roles } = await dispatch('getInfo')

      resetRouter()

      // generate accessible routes map based on roles
      const accessRoutes = await dispatch('permission/generateRoutes', roles, { root: true })

      // dynamically add accessible routes
      router.addRoutes(accessRoutes)

      // reset visited views and cached views
      dispatch('tagsView/delAllViews', null, { root: true })

      resolve()
    })
  }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}
